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Analysis on the Effect of The Ill-conditioning to the Surveying Adjustment Model

NI Jia-ming,ZHANG Jun,HU Xian-hui (1 Southwest Electric Power Design Institute,Chengdu,610021;2 Department of mining of Guizhou University,Guiyang,550003)  
Ill-conditioning problems extensively exist in the data processing of surveying and other various engineering fields.In this paper,the bad effect of the ill-conditioning to the classical surveying adjustment model has been analyzed.
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